Hi Tube Amp lovers
I have been looking at designs for a truly powerful tube amplifier for PA use, or listening to large orchestra's.
My thinking followed this path. The thickest copper I use (so far) on my transformers, is 2mm. This translates to about 8-10 Ampere of 6.3V available without having to go and buy more copper.
Now 8-10 ampere's can fire up 8 X 6L6GC or 5 X KT88. With the price of Chinese 6L6GC being quite low, compared to other tubes, a 200watt monoblock could be tubed without breaking the bank.
Last night I read up in my GEC book "An Approach to Audio Frequency Design".
Right in the back they discuss an 400watt design for 5 pairs of KT88's. The circuit seems straight forward.
While 550V on the plates is good for the KT88/6550 tubes, the 6L6GC's will probably not go much higher than 500V on the plates.
Has anyone built or heard this design?
I have been looking at designs for a truly powerful tube amplifier for PA use, or listening to large orchestra's.
My thinking followed this path. The thickest copper I use (so far) on my transformers, is 2mm. This translates to about 8-10 Ampere of 6.3V available without having to go and buy more copper.
Now 8-10 ampere's can fire up 8 X 6L6GC or 5 X KT88. With the price of Chinese 6L6GC being quite low, compared to other tubes, a 200watt monoblock could be tubed without breaking the bank.
Last night I read up in my GEC book "An Approach to Audio Frequency Design".
Right in the back they discuss an 400watt design for 5 pairs of KT88's. The circuit seems straight forward.
While 550V on the plates is good for the KT88/6550 tubes, the 6L6GC's will probably not go much higher than 500V on the plates.
Has anyone built or heard this design?
